[thirdparty/u-boot.git] / include / dfu.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * dfu.h - DFU flashable area description
 *
 * Copyright (C) 2012 Samsung Electronics
 * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
 *	    Lukasz Majewski <l.majewski@samsung.com>
 */

#ifndef __DFU_ENTITY_H_
#define __DFU_ENTITY_H_

#include <common.h>
#include <linux/list.h>
#include <mmc.h>
#include <spi_flash.h>
#include <linux/usb/composite.h>

enum dfu_device_type {
	DFU_DEV_MMC = 1,
	DFU_DEV_ONENAND,
	DFU_DEV_NAND,
	DFU_DEV_RAM,
	DFU_DEV_SF,
	DFU_DEV_MTD,
	DFU_DEV_VIRT,
};

enum dfu_layout {
	DFU_RAW_ADDR = 1,
	DFU_FS_FAT,
	DFU_FS_EXT2,
	DFU_FS_EXT3,
	DFU_FS_EXT4,
	DFU_RAM_ADDR,
};

enum dfu_op {
	DFU_OP_READ = 1,
	DFU_OP_WRITE,
	DFU_OP_SIZE,
};

struct mmc_internal_data {
	int dev_num;

	/* RAW programming */
	unsigned int lba_start;
	unsigned int lba_size;
	unsigned int lba_blk_size;

	/* eMMC HW partition access */
	int hw_partition;

	/* FAT/EXT */
	unsigned int dev;
	unsigned int part;
};

struct mtd_internal_data {
	struct mtd_info *info;

	/* RAW programming */
	u64 start;
	u64 size;
	/* for ubi partition */
	unsigned int ubi;
};

struct nand_internal_data {
	/* RAW programming */
	u64 start;
	u64 size;

	unsigned int dev;
	unsigned int part;
	/* for nand/ubi use */
	unsigned int ubi;
};

struct ram_internal_data {
	void		*start;
	unsigned int	size;
};

struct sf_internal_data {
	struct spi_flash *dev;

	/* RAW programming */
	u64 start;
	u64 size;
	/* for sf/ubi use */
	unsigned int ubi;
};

struct virt_internal_data {
	int dev_num;
};

#define DFU_NAME_SIZE			32
#ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
#define CONFIG_SYS_DFU_DATA_BUF_SIZE		(1024*1024*8)	/* 8 MiB */
#endif
#ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
#define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE
#endif
#ifndef DFU_DEFAULT_POLL_TIMEOUT
#define DFU_DEFAULT_POLL_TIMEOUT 0
#endif
#ifndef DFU_MANIFEST_POLL_TIMEOUT
#define DFU_MANIFEST_POLL_TIMEOUT	DFU_DEFAULT_POLL_TIMEOUT
#endif

struct dfu_entity {
	char			name[DFU_NAME_SIZE];
	int                     alt;
	void                    *dev_private;
	enum dfu_device_type    dev_type;
	enum dfu_layout         layout;
	unsigned long           max_buf_size;

	union {
		struct mmc_internal_data mmc;
		struct mtd_internal_data mtd;
		struct nand_internal_data nand;
		struct ram_internal_data ram;
		struct sf_internal_data sf;
		struct virt_internal_data virt;
	} data;

	int (*get_medium_size)(struct dfu_entity *dfu, u64 *size);

	int (*read_medium)(struct dfu_entity *dfu,
			u64 offset, void *buf, long *len);

	int (*write_medium)(struct dfu_entity *dfu,
			u64 offset, void *buf, long *len);

	int (*flush_medium)(struct dfu_entity *dfu);
	unsigned int (*poll_timeout)(struct dfu_entity *dfu);

	void (*free_entity)(struct dfu_entity *dfu);

	struct list_head list;

	/* on the fly state */
	u32 crc;
	u64 offset;
	int i_blk_seq_num;
	u8 *i_buf;
	u8 *i_buf_start;
	u8 *i_buf_end;
	u64 r_left;
	long b_left;

	u32 bad_skip;	/* for nand use */

	unsigned int inited:1;
};

#ifdef CONFIG_SET_DFU_ALT_INFO
void set_dfu_alt_info(char *interface, char *devstr);
#endif
int dfu_alt_init(int num, struct dfu_entity **dfu);
int dfu_alt_add(struct dfu_entity *dfu, char *interface, char *devstr, char *s);
int dfu_config_entities(char *s, char *interface, char *devstr);
void dfu_free_entities(void);
void dfu_show_entities(void);
int dfu_get_alt_number(void);
const char *dfu_get_dev_type(enum dfu_device_type t);
const char *dfu_get_layout(enum dfu_layout l);
struct dfu_entity *dfu_get_entity(int alt);
char *dfu_extract_token(char** e, int *n);
int dfu_get_alt(char *name);
int dfu_init_env_entities(char *interface, char *devstr);
unsigned char *dfu_get_buf(struct dfu_entity *dfu);
unsigned char *dfu_free_buf(void);
unsigned long dfu_get_buf_size(void);
bool dfu_usb_get_reset(void);

#ifdef CONFIG_DFU_TIMEOUT
unsigned long dfu_get_timeout(void);
void dfu_set_timeout(unsigned long);
#endif

int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
int dfu_flush(struct dfu_entity *de, void *buf, int size, int blk_seq_num);

/**
 * dfu_initiated_callback - weak callback called on DFU transaction start
 *
 * It is a callback function called by DFU stack when a DFU transaction is
 * initiated. This function allows to manage some board specific behavior on
 * DFU targets.
 *
 * @param dfu - pointer to the dfu_entity, which should be initialized
 *
 */
void dfu_initiated_callback(struct dfu_entity *dfu);
/**
 * dfu_flush_callback - weak callback called at the end of the DFU write
 *
 * It is a callback function called by DFU stack after DFU manifestation.
 * This function allows to manage some board specific behavior on DFU targets
 *
 * @param dfu - pointer to the dfu_entity, which should be flushed
 *
 */
void dfu_flush_callback(struct dfu_entity *dfu);

/*
 * dfu_defer_flush - pointer to store dfu_entity for deferred flashing.
 *		     It should be NULL when not used.
 */
extern struct dfu_entity *dfu_defer_flush;
/**
 * dfu_get_defer_flush - get current value of dfu_defer_flush pointer
 *
 * @return - value of the dfu_defer_flush pointer
 */
static inline struct dfu_entity *dfu_get_defer_flush(void)
{
	return dfu_defer_flush;
}

/**
 * dfu_set_defer_flush - set the dfu_defer_flush pointer
 *
 * @param dfu - pointer to the dfu_entity, which should be written
 */
static inline void dfu_set_defer_flush(struct dfu_entity *dfu)
{
	dfu_defer_flush = dfu;
}

/**
 * dfu_write_from_mem_addr - write data from memory to DFU managed medium
 *
 * This function adds support for writing data starting from fixed memory
 * address (like $loadaddr) to dfu managed medium (e.g. NAND, MMC, file system)
 *
 * @param dfu - dfu entity to which we want to store data
 * @param buf - fixed memory addres from where data starts
 * @param size - number of bytes to write
 *
 * @return - 0 on success, other value on failure
 */
int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size);

/* Device specific */
#if CONFIG_IS_ENABLED(DFU_MMC)
extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
				      char *s)
{
	puts("MMC support not available!\n");
	return -1;
}
#endif

#if CONFIG_IS_ENABLED(DFU_NAND)
extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
				       char *s)
{
	puts("NAND support not available!\n");
	return -1;
}
#endif

#if CONFIG_IS_ENABLED(DFU_RAM)
extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
				      char *s)
{
	puts("RAM support not available!\n");
	return -1;
}
#endif

#if CONFIG_IS_ENABLED(DFU_SF)
extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
				     char *s)
{
	puts("SF support not available!\n");
	return -1;
}
#endif

#if CONFIG_IS_ENABLED(DFU_MTD)
int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr,
				      char *s)
{
	puts("MTD support not available!\n");
	return -1;
}
#endif

#ifdef CONFIG_DFU_VIRT
int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr, char *s);
int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
			  void *buf, long *len);
int dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size);
int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
			 void *buf, long *len);
#else
static inline int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr,
				       char *s)
{
	puts("VIRT support not available!\n");
	return -1;
}
#endif

/**
 * dfu_tftp_write - Write TFTP data to DFU medium
 *
 * This function is storing data received via TFTP on DFU supported medium.
 *
 * @param dfu_entity_name - name of DFU entity to write
 * @param addr - address of data buffer to write
 * @param len - number of bytes
 * @param interface - destination DFU medium (e.g. "mmc")
 * @param devstring - instance number of destination DFU medium (e.g. "1")
 *
 * @return 0 on success, otherwise error code
 */
#if CONFIG_IS_ENABLED(DFU_TFTP)
int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
		   char *interface, char *devstring);
#else
static inline int dfu_tftp_write(char *dfu_entity_name, unsigned int addr,
				 unsigned int len, char *interface,
				 char *devstring)
{
	puts("TFTP write support for DFU not available!\n");
	return -ENOSYS;
}
#endif

int dfu_add(struct usb_configuration *c);
#endif /* __DFU_ENTITY_H_ */
Commit	Line	Data
83d290c5	1	/* SPDX-License-Identifier: GPL-2.0+ */
f22b11c1 ŁM	2	/*
	3	* dfu.h - DFU flashable area description
	4	*
	5	* Copyright (C) 2012 Samsung Electronics
	6	* authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
	7	* Lukasz Majewski <l.majewski@samsung.com>
f22b11c1 ŁM	8	*/
	9
	10	#ifndef __DFU_ENTITY_H_
	11	#define __DFU_ENTITY_H_
	12
	13	#include <common.h>
	14	#include <linux/list.h>
	15	#include <mmc.h>
6f12ebf6	16	#include <spi_flash.h>
a6921adc	17	#include <linux/usb/composite.h>
f22b11c1 ŁM	18
	19	enum dfu_device_type {
	20	DFU_DEV_MMC = 1,
	21	DFU_DEV_ONENAND,
	22	DFU_DEV_NAND,
a9479f04	23	DFU_DEV_RAM,
6f12ebf6	24	DFU_DEV_SF,
6015af28	25	DFU_DEV_MTD,
ec44cace	26	DFU_DEV_VIRT,
f22b11c1 ŁM	27	};
	28
	29	enum dfu_layout {
	30	DFU_RAW_ADDR = 1,
	31	DFU_FS_FAT,
	32	DFU_FS_EXT2,
	33	DFU_FS_EXT3,
	34	DFU_FS_EXT4,
a9479f04	35	DFU_RAM_ADDR,
f22b11c1 ŁM	36	};
f22b11c1 ŁM	37
5a127c84 AM	38	enum dfu_op {
	39	DFU_OP_READ = 1,
	40	DFU_OP_WRITE,
0e285b50	41	DFU_OP_SIZE,
5a127c84 AM	42	};
5a127c84 AM	43
f22b11c1	44	struct mmc_internal_data {
dd64827e SW	45	int dev_num;
dd64827e SW	46
f22b11c1 ŁM	47	/* RAW programming */
	48	unsigned int lba_start;
	49	unsigned int lba_size;
	50	unsigned int lba_blk_size;
	51
c8151b4a ŁM	52	/* eMMC HW partition access */
	53	int hw_partition;
	54
f22b11c1 ŁM	55	/* FAT/EXT */
	56	unsigned int dev;
	57	unsigned int part;
	58	};
	59
6015af28 PD	60	struct mtd_internal_data {
	61	struct mtd_info *info;
	62
	63	/* RAW programming */
	64	u64 start;
	65	u64 size;
d5640f70 PD	66	/* for ubi partition */
d5640f70 PD	67	unsigned int ubi;
6015af28 PD	68	};
6015af28 PD	69
c6631764 PA	70	struct nand_internal_data {
	71	/* RAW programming */
	72	u64 start;
	73	u64 size;
	74
	75	unsigned int dev;
	76	unsigned int part;
815c30b2 HS	77	/* for nand/ubi use */
815c30b2 HS	78	unsigned int ubi;
c6631764 PA	79	};
c6631764 PA	80
a9479f04 AM	81	struct ram_internal_data {
	82	void *start;
	83	unsigned int size;
	84	};
	85
6f12ebf6 SW	86	struct sf_internal_data {
	87	struct spi_flash *dev;
	88
	89	/* RAW programming */
	90	u64 start;
	91	u64 size;
cb986ba0 PD	92	/* for sf/ubi use */
cb986ba0 PD	93	unsigned int ubi;
6f12ebf6 SW	94	};
6f12ebf6 SW	95
ec44cace PD	96	struct virt_internal_data {
	97	int dev_num;
	98	};
	99
a24c3155	100	#define DFU_NAME_SIZE 32
e7e75c70 HS	101	#ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
	102	#define CONFIG_SYS_DFU_DATA_BUF_SIZE (102410248) /* 8 MiB */
	103	#endif
ea2453d5	104	#ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
7a813d5b	105	#define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE
ea2453d5	106	#endif
33fac4a6 ŁM	107	#ifndef DFU_DEFAULT_POLL_TIMEOUT
	108	#define DFU_DEFAULT_POLL_TIMEOUT 0
	109	#endif
001a8319 HS	110	#ifndef DFU_MANIFEST_POLL_TIMEOUT
	111	#define DFU_MANIFEST_POLL_TIMEOUT DFU_DEFAULT_POLL_TIMEOUT
	112	#endif
f22b11c1 ŁM	113
	114	struct dfu_entity {
	115	char name[DFU_NAME_SIZE];
	116	int alt;
	117	void *dev_private;
f22b11c1 ŁM	118	enum dfu_device_type dev_type;
f22b11c1 ŁM	119	enum dfu_layout layout;
7ac1b410	120	unsigned long max_buf_size;
f22b11c1 ŁM	121
	122	union {
	123	struct mmc_internal_data mmc;
6015af28	124	struct mtd_internal_data mtd;
c6631764	125	struct nand_internal_data nand;
a9479f04	126	struct ram_internal_data ram;
6f12ebf6	127	struct sf_internal_data sf;
ec44cace	128	struct virt_internal_data virt;
f22b11c1 ŁM	129	} data;
f22b11c1 ŁM	130
15970d87	131	int (get_medium_size)(struct dfu_entity dfu, u64 *size);
0e285b50	132
ea2453d5 PA	133	int (read_medium)(struct dfu_entity dfu,
	134	u64 offset, void buf, long len);
	135
	136	int (write_medium)(struct dfu_entity dfu,
	137	u64 offset, void buf, long len);
	138
	139	int (flush_medium)(struct dfu_entity dfu);
fc25fa27	140	unsigned int (poll_timeout)(struct dfu_entity dfu);
f22b11c1	141
cb7bd2e0 SW	142	void (free_entity)(struct dfu_entity dfu);
cb7bd2e0 SW	143
f22b11c1	144	struct list_head list;
ea2453d5 PA	145
	146	/* on the fly state */
	147	u32 crc;
	148	u64 offset;
	149	int i_blk_seq_num;
	150	u8 *i_buf;
	151	u8 *i_buf_start;
	152	u8 *i_buf_end;
15970d87	153	u64 r_left;
ea2453d5 PA	154	long b_left;
ea2453d5 PA	155
c6631764 PA	156	u32 bad_skip; /* for nand use */
c6631764 PA	157
ea2453d5	158	unsigned int inited:1;
f22b11c1 ŁM	159	};
f22b11c1 ŁM	160
899a5282 PM	161	#ifdef CONFIG_SET_DFU_ALT_INFO
	162	void set_dfu_alt_info(char interface, char devstr);
	163	#endif
9ada6830 PD	164	int dfu_alt_init(int num, struct dfu_entity **dfu);
9ada6830 PD	165	int dfu_alt_add(struct dfu_entity dfu, char interface, char devstr, char s);
dd64827e	166	int dfu_config_entities(char s, char interface, char *devstr);
f22b11c1 ŁM	167	void dfu_free_entities(void);
	168	void dfu_show_entities(void);
	169	int dfu_get_alt_number(void);
	170	const char *dfu_get_dev_type(enum dfu_device_type t);
	171	const char *dfu_get_layout(enum dfu_layout l);
	172	struct dfu_entity *dfu_get_entity(int alt);
	173	char dfu_extract_token(char* e, int *n);
fed936ed	174	int dfu_get_alt(char *name);
dd64827e	175	int dfu_init_env_entities(char interface, char devstr);
7ac1b410	176	unsigned char dfu_get_buf(struct dfu_entity dfu);
d4278263	177	unsigned char *dfu_free_buf(void);
4fb12789	178	unsigned long dfu_get_buf_size(void);
1cc03c5c	179	bool dfu_usb_get_reset(void);
f22b11c1	180
98a8f445 AS	181	#ifdef CONFIG_DFU_TIMEOUT
	182	unsigned long dfu_get_timeout(void);
	183	void dfu_set_timeout(unsigned long);
	184	#endif
	185
f22b11c1 ŁM	186	int dfu_read(struct dfu_entity de, void buf, int size, int blk_seq_num);
f22b11c1 ŁM	187	int dfu_write(struct dfu_entity de, void buf, int size, int blk_seq_num);
a2199afe	188	int dfu_flush(struct dfu_entity de, void buf, int size, int blk_seq_num);
2092e461	189
067c13c7 PD	190	/**
	191	* dfu_initiated_callback - weak callback called on DFU transaction start
	192	*
	193	* It is a callback function called by DFU stack when a DFU transaction is
	194	* initiated. This function allows to manage some board specific behavior on
	195	* DFU targets.
	196	*
	197	* @param dfu - pointer to the dfu_entity, which should be initialized
	198	*
	199	*/
	200	void dfu_initiated_callback(struct dfu_entity *dfu);
	201	/**
	202	* dfu_flush_callback - weak callback called at the end of the DFU write
	203	*
	204	* It is a callback function called by DFU stack after DFU manifestation.
	205	* This function allows to manage some board specific behavior on DFU targets
	206	*
	207	* @param dfu - pointer to the dfu_entity, which should be flushed
	208	*
	209	*/
	210	void dfu_flush_callback(struct dfu_entity *dfu);
	211
fc18f8d1 ŁM	212	/*
	213	* dfu_defer_flush - pointer to store dfu_entity for deferred flashing.
	214	* It should be NULL when not used.
	215	*/
	216	extern struct dfu_entity *dfu_defer_flush;
	217	/**
	218	* dfu_get_defer_flush - get current value of dfu_defer_flush pointer
	219	*
	220	* @return - value of the dfu_defer_flush pointer
	221	*/
	222	static inline struct dfu_entity *dfu_get_defer_flush(void)
	223	{
	224	return dfu_defer_flush;
	225	}
	226
	227	/**
	228	* dfu_set_defer_flush - set the dfu_defer_flush pointer
	229	*
	230	* @param dfu - pointer to the dfu_entity, which should be written
	231	*/
	232	static inline void dfu_set_defer_flush(struct dfu_entity *dfu)
	233	{
	234	dfu_defer_flush = dfu;
	235	}
	236
2092e461 LM	237	/**
	238	* dfu_write_from_mem_addr - write data from memory to DFU managed medium
	239	*
	240	* This function adds support for writing data starting from fixed memory
	241	* address (like $loadaddr) to dfu managed medium (e.g. NAND, MMC, file system)
	242	*
	243	* @param dfu - dfu entity to which we want to store data
	244	* @param buf - fixed memory addres from where data starts
	245	* @param size - number of bytes to write
	246	*
	247	* @return - 0 on success, other value on failure
	248	*/
	249	int dfu_write_from_mem_addr(struct dfu_entity dfu, void buf, int size);
	250
f22b11c1	251	/* Device specific */
2d59ec84	252	#if CONFIG_IS_ENABLED(DFU_MMC)
dd64827e	253	extern int dfu_fill_entity_mmc(struct dfu_entity dfu, char devstr, char *s);
f22b11c1	254	#else
dd64827e SW	255	static inline int dfu_fill_entity_mmc(struct dfu_entity dfu, char devstr,
dd64827e SW	256	char *s)
f22b11c1 ŁM	257	{
	258	puts("MMC support not available!\n");
	259	return -1;
	260	}
	261	#endif
c6631764	262
2d59ec84	263	#if CONFIG_IS_ENABLED(DFU_NAND)
dd64827e	264	extern int dfu_fill_entity_nand(struct dfu_entity dfu, char devstr, char *s);
c6631764	265	#else
dd64827e SW	266	static inline int dfu_fill_entity_nand(struct dfu_entity dfu, char devstr,
dd64827e SW	267	char *s)
c6631764 PA	268	{
	269	puts("NAND support not available!\n");
	270	return -1;
	271	}
	272	#endif
	273
2d59ec84	274	#if CONFIG_IS_ENABLED(DFU_RAM)
dd64827e	275	extern int dfu_fill_entity_ram(struct dfu_entity dfu, char devstr, char *s);
a9479f04	276	#else
dd64827e SW	277	static inline int dfu_fill_entity_ram(struct dfu_entity dfu, char devstr,
dd64827e SW	278	char *s)
a9479f04 AM	279	{
	280	puts("RAM support not available!\n");
	281	return -1;
	282	}
	283	#endif
	284
2d59ec84	285	#if CONFIG_IS_ENABLED(DFU_SF)
6f12ebf6 SW	286	extern int dfu_fill_entity_sf(struct dfu_entity dfu, char devstr, char *s);
	287	#else
	288	static inline int dfu_fill_entity_sf(struct dfu_entity dfu, char devstr,
	289	char *s)
	290	{
	291	puts("SF support not available!\n");
	292	return -1;
	293	}
	294	#endif
	295
6015af28 PD	296	#if CONFIG_IS_ENABLED(DFU_MTD)
	297	int dfu_fill_entity_mtd(struct dfu_entity dfu, char devstr, char *s);
	298	#else
	299	static inline int dfu_fill_entity_mtd(struct dfu_entity dfu, char devstr,
	300	char *s)
	301	{
	302	puts("MTD support not available!\n");
	303	return -1;
	304	}
	305	#endif
	306
ec44cace PD	307	#ifdef CONFIG_DFU_VIRT
	308	int dfu_fill_entity_virt(struct dfu_entity dfu, char devstr, char *s);
	309	int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
	310	void buf, long len);
	311	int dfu_get_medium_size_virt(struct dfu_entity dfu, u64 size);
	312	int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
	313	void buf, long len);
	314	#else
	315	static inline int dfu_fill_entity_virt(struct dfu_entity dfu, char devstr,
	316	char *s)
	317	{
	318	puts("VIRT support not available!\n");
	319	return -1;
	320	}
	321	#endif
	322
2d50d68a LM	323	/**
	324	* dfu_tftp_write - Write TFTP data to DFU medium
	325	*
	326	* This function is storing data received via TFTP on DFU supported medium.
	327	*
	328	* @param dfu_entity_name - name of DFU entity to write
	329	* @param addr - address of data buffer to write
	330	* @param len - number of bytes
	331	* @param interface - destination DFU medium (e.g. "mmc")
	332	* @param devstring - instance number of destination DFU medium (e.g. "1")
	333	*
	334	* @return 0 on success, otherwise error code
	335	*/
2d59ec84	336	#if CONFIG_IS_ENABLED(DFU_TFTP)
2d50d68a LM	337	int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
	338	char interface, char devstring);
	339	#else
	340	static inline int dfu_tftp_write(char *dfu_entity_name, unsigned int addr,
	341	unsigned int len, char *interface,
	342	char *devstring)
	343	{
	344	puts("TFTP write support for DFU not available!\n");
	345	return -ENOSYS;
	346	}
	347	#endif
	348
a6921adc	349	int dfu_add(struct usb_configuration *c);
f22b11c1	350	#endif /* __DFU_ENTITY_H_ */